What kind of pressure treatment is used on these fence posts and the associated fence panels? Is it ACQ type treatment which requires the use of special screws to prevent corosion e.g. stainless steel screws?

Thank you for your inquiry.

The timber used for our fence posts and panels is treated to the UC2 standard, which provides protection against rot and insect attack. While we cannot confirm the exact preservative used without further investigation, it's likely to be an ACQ-based treatment.

To ensure optimal performance and longevity, we recommend using hot-dipped galvanized or stainless steel screws for installation